Which philosopher is the most universally relevant?

>>1523230
Leaving aside the validity of their claims?

Nietzsche probably, just because he reaches your soul with his writing.

>>1523230
>who made the strongest case compelling a person to care about their philosophy?
I dunno about your metric here but probably the most "universally relevant" philosopher is Kant because out of his idealism comes all modern political ideologies

Aristotle, who laid the foundations of logic and reason, from which all philosophies would rise, especially the enlightenment philosophies.

>>1523702
You mean who formalised logic into a system.

Logic and reason existed before him.

Goddamnit. I hate rankings of philosophers. Philosophers crave to different kinds of people.

>most universally relevant
Plato, almost definitely.
>who made the strongest case compelling a person to care about their philosophy
This one is harder IMO. Kant is a good choice, as the other guy said, though Nietzsche is more likely to directly reach someone probably. Maybe a honourable mention to Stirner as well, given how much trouble trying to refute him has caused people.